Electric switchboard.



W; M. HYMAN. ,ELECTRIC SWTCHBOABD. APPLoATIoH FILED JULY s, 1906. B BNBWED :UNI: 5, 1909.

Patented Mar. 29, 1910.

2 SHEETS-r-SBEET 1.

-mmmg W. lvl.l HYMAN. EIEGTRIG .SW'IBBOARDI APPLICATION IILED JULY 8, 1905. BBNBWED JUNE 5, 1909.

Patented Mar. 29; 1910.

3251:; @Hom EN; y

WALLACE IVI. HYMAN, OF NEW YORK, N. Y.

ELECTRIC SWITCHBOARD.

Specification of Letters Patent.

Patented 'Mal'. 29, 1910.

Application filed July 8, 1905, Serial No. 268,776. Renewed June 5, 1909, Serial No. 500,407.

To all tr/iron it lmay con-cern:

lle it known that l, A\\Y.\I.I,.\ ;n M. HYMAN,

a citizen ot" 'the United States, residing in New York, borough ot' Manhattan, and .3l State ot' New York. have invented certain new and nse'tnl linproyeincnts in Electric Hw'ih-hboards. of which the following is a specification. i

This invention relates to i'inlproreinents in electric switchboards. and more particularly those n cd At'or the distribution of current 'troni inain bus-bars to the feeders, which convey electric currentto locations where used, and hasl `tor itsI object to provide a f-iwitchboard. first, in which the` fuses are located at a point distant 'troni the point; ot' connection ot the .s\-\itchboard with the t'ecders t'or the purpose ot' trbviat'ing the objectionable interfere-nee of the fuses and feeders incident to the 4switcl'iboards ordinarily .in use: secoinlly, in which the auxiliary bus-bars leading 'from the niain bus-bars through switches, fuses and other devices to the it'eedersl are supported and isolated troni cach other so that bns-bars ot' one polarity arc protectetl against accidental eontactor connection with bus-bars of opposite polarity; thirdly. in which he fuses which protect the feeders4 are located and .support- :ni ed in such a inanner that there is no danger to an attendant who removesl and replaces thein ol accidei'ital contact with bnsbars of fopposite pt'ilarity.

For this purpo.=,e the invent-ion consists of an improved electric .switchboard comprising a tace-wall or continuonsI upright board. a plurality of' vertical panels perpendicular to said, face-wall or board at the rear thereof. and a plurality o't bns-bars .0 supported by .said panels on either side thereof, the bns-bars on one .side beingof one polarity and the bus-barsl on the other side ot opposite polarity.

The invention consists further of certain novel features which will be niore fnl y described hereinafter and finally pointed ont' in the claims.

ln the acconil'ianring drawings, Figure l represents a vertieal transverse section ot my iniliroved switchboard, Fig. *f2 shows` an enlarged detail View` partly in section, ol' a portion olf' iny improved Iswitchboard as indicated by line Q. 2 ot' Fig. l, and the arrow tl, li`i Y il, ft and 5 are detail horizontal sections tal, `n on lines4 3, 3, 't, 4, and 5, 5, oi

Fig. l, Fig. G is a horizontal section of iny improved switchboard taken on line G, G of Fig. 1, seen in'the direction ot the arrow 9,

`Fig. 7 is a ci.'spective View of only a few of the switches, properly connected` and showing only a part otl the upright board and parts of two of the panels or partitions.- and Fig. 8 is a plan-view of a plurality of panels or partitions as arranged perpendicularly to the upright board and showing some of the connections diagramn'iatically.

Similar letters ot reference indicate corresponding parts.

Vtote-ning to the drawings, the face-wall or continuous upright board A o f my irnproved switchboard is composed of any desired nninber of separate Vertical, laterally abutting slabs or panels of suitable insulating material suitably fastened to the floor of the pmver-house or t perating-room.l At the front of said face-wall or board A are arranged a plurality of double-pole switches B composed of two single switches, and at the rear thereof are arranged a plurality of vertical partitions or panels S, each perpendicular to the tace-wall or board and intermediate to the two single switches of each double-pole switch Bs which, as said, are on .the trontot. the boa-rd. The partitions S are spaced sonic, distance apart, and support, on either side thereof, feeder busbars ll. Preferably below thc partitions or panels S, niain bus-bars N and N1 are arranged, :troni which auxiliary lons-bars M extend vertically upward, one between each two partitions. One auxiliary lons-bar M, coi'niected wit-h the negative main bus-bar N, and hence of negat-h'e polarity, is located between one set of two of the partitions, andlone auxiliary bus-bar M, connected with the positive main bus-bar N, and hence of positive polarity, is located between the nextset of two partitions, then a negative auxiliary bus-bar is arranged between the next set ot two partitions, and then a positive auxiliary `bus-bar is arranged between the next set of two partitions, and so on, there being one auxiliarybus-bar between the two t'acing` sides of each two partititiiisfbnt alternately o opposite polarity.

Referringi'nore particularly to the drawings, the double-pole switches consist'J each of two single bladeo'r knife-switches b1 hinged at one end and adapted to engage y'showin wall A\ and panels or the clips L2 when closed. rllhe blades L* have their tree ends connected by insulated handles L, as is well known. The clips b2 are electrically connected with the auxiliary bus-bars hl located between each of the partitions by incans ot and the bladesl /11 are connected with the feeder bus-ba rs l, on either side of one partition, by means ot studs b5.

The partitions, panels or separatinirwalls S, which may be niade of any suitable insulatini;` material, are secured to the rear ot' the :l`aecwall or board A by screws S, or in any other suitable manner. so as to be perpendicular to said tace-wall` as be'tore said, and are located the rear ot the facewvall intertnediately be tween the two single blade-switches ot each oit the double-pole switches. On each side lsupport feeder bus-bars studs '/fand bars Btl, t

. tions between whichthe so as to be in a position at t at the rear ot the ot' each panel S are supported the t'eeder v busbars R. rThe feeder bus-bars R on one side. ot' the panels or partitions are connected through fuses Z with those single blades Ll of the corresponding el with the 1,)ositive auxiliary busba1s while the feeder bus-bars ou the of the saine panel or partition are connected through fuses Z with those blades bl of the saine double-pole switches, the correspondingclips of which are connected with the negative auxiliary bus-bar lt. The studs b5, perpendicular to vary in length, dependingon the distance ot' the respective feeder bus-bars R from the tace-wall or board. interposed in the feeder bus-bars, the lower are connected other side l the .tace-wall or board.

double-pole switches B, the

two neighboring' partitions between which the positive auxiliary bus-bars are arranged,

adapted to he electrically connected with the positive auxiliary bustars, when the switches are closed, while those two sides oti those two adjacent partinegative auxiliary bus-hars are arranged, support feeder bushars adapted to be electrically connected with the negative auxiliary bus-bars, when the switches are closed. Hence, the partitions support' feeder bus-bars on both sides thereol. those on one side being ot positive polarit) and tlnise ou the other being` of negative polarity. lso. as has been said, the doublepole .\.'it\:hes, llocated at the 'front of the Vtace-watt or hoard. are in such position, as to, so to say. straddle the partitions located 'l'ace-wall, or, in other words, each ot the panels is located so as to be midway between the two component single switches ot each double switch. Thatv is, one ot the .single switches ot one double-pole 4switch is located on one lside of the vertical plane .single switches of that doublespole switch is located on the other side otl that plane, both single 'switches being at; the front of the tace-wall. And, the single switch on one side of that vertical partition plane is connected with the feeder bus-bars on the parti- Fuses Z, as said, are

ends of which 'tuses are supported by clamps 2l connected with Athe studs o, while the upper end ot' each are held by clamps z2 connected with the feeder bns-bars P. The clamps el, z2 are a 'ranged parallel ,with and are supported by the panels ject toward the rear end of the sa1ne,'in order Ato perniit :fuses 'from the rear of the switchboard. rlhe feeder bus-bars R, separated by the panels, have their' upper ents connected by thun1bscrews zr, or other suitable means, with eonductors or insulated wires L which coniconsists of a `sectional S so as to proj the ready reinoval of the t prise the feeders serving to distribute the electrical current to the points where it is used, said wires beine; shown in the drawings protected by suitable tubes 'l".

In Fig. 8 isfshown a plurality ot partitions Fi. each ot which is perpendicular to the upright board at the the switches l, and at the rear otl which the niain bus-bars N and N1, auxiliary bus-bars M, and 'teeder bus-bars Ity are arranged, while in Fic. T a perspective View ot' sev eral .switches as properly connected is t together with parts ol:` the upright@` partitionsI S. llence j as seen t'roni above, those two sides ot those i tion and on the .saine lside ot that partition plane, and the other single switch is connected with the .teeder bns-hars on the other .side of that partition.

One method ot manut'acturing niy iniproved switchboard is to divide the facewall or board into sections, each of which face-board A1 having dovetailed ends adapted to engage the dovetailed ends et' the ,adjacent sectional faceboards, and having one ot' niy improved panels or partitions at the rear thereof and vertical thereto, which supports the feederv bus-bars thereon, as hereinl'ietore described. The switchboard is installed by connect-ing' together the separate sections A1 at their dovetailed ends, and the proper electrical connections are then made with the main and auxiliary bus-bars.

The switches at the frontv ot the board are preferably double-pole kniteswitches, but I do not wish to liinit myself thereto as lany other switch mechanism may be used instead nnlnber of poles t'ront ot which t thereof, Any number ot' switches ot' any and ot any approved construction inay be arrangetit on said facehoard. Nor do Twish to limit inyselt to the specitic arrangement shown in the drawings as such inay be 1noditied,.without departing' troni the spirit of my invention.

AMuonl the advantages of niy improved switchboard may be 111entioned the system'- atic distribution of bus-bars at the rear ot the board, 1n that the positive and negative lli) aca-tee auxiliary and feeder' bus-bars are isolated `and separatedfrom each other, so that all dan er of Short, circuits between these bars is o viatzed. Furthermore, bus-bars of only e one polarity being arranged between ltwo adjacent panels or partitions, repairs are more accessible than with the boards hitherto in use, also because, as mentioned above, *f there is practically no danger ot short circuits attendant on the use ot a metal tool employed in the making of such repairs. By the arrangement of the fuses and busbars on the panels, theffuses and bus-bars may be placed closer together and therefore more switches may be employed on the same lsize ofboard than hitherto. The fuses which .require frequent renewal are also far more accessible and may be readily replaced. On account ot the location of fuses and busbars of'one polarity only between two adjacent partitions, the fuses may be removed or replaced without any danger to the attendant of coming in lcontact with conductors of opposite polarity. Lastly, the obstruction of the rear ot the switchboard by an objectionable mass of wiring, which prevents access to thel fuses and bus-bars, as 'is usual in switchboards ordinarily used, is avoided by the connection of all the feeders with the switchboard, distant from the location of the fuses.

Having thus described my invention7 I claim as new and desire to secure by Letters Patent:

1. An electrical switchboard, comprising a face-wall or continuous upright poard, a plurality of vertical panels perpendicular to said face-Wall or board at the rear thereof, and a plurality of bus-bars supported by said panels on either side thereof, the bus-harsen one side being of one polarity and the bus-bars-on the other side of opposite polarity, each of said bus-bars having one of its ends terminating at the t'ront ot' the upright board.

2. An electrical switchboard, comprising a face-Wall or continuous upright board, a plurality of vertical panels Jerpendicular to said Iface-Wall or board an. spaced some distance apart, a plurality of feedervbusbars supported by said panels on either side thereof, the bus-bars of one side being of one polarity and those on the other side of opposite polarity, switches at the front of said face-Wall or board, each connected with the feeder bus-bars on one side of a panel, and With the feeder bus-bars on the other sideof .hat'paneh and auxiliary bus-bars arrange between the panels alternately of and connected with the opposlte polarity,

switches.v Y

3. An electrical switchboard, comprising altace-Wall or continuous upright board, a plurality of vertical panels perpendicular to said face-Wan or board and s aced some distance apart, a plurality of eeder busbars supported by said panels on either side thereof, thc bus-bars on one side being of one polarity and those on the other side ot' v opposite polarity, double-pole switches, havve'ry much facilitated as the parts are much l i ing bladesl and clips, at the front of said face-wall or board. having one of their blades connected with the feeder bus-bars on one side of the panels and the other ot' their blades connected with the feeder busbars on the other sidel oi" the panels, and

auxiliary bus-bars arranged between the panels alternately ot' opposite polarity and connected with the clips of the switches.

4. An electrical switchboard, comprising a face-wall or continuous upright board, a plurality of Vertical panels )erpendieular to said face-wall or board and spaced some distance apart, a. plurality of feeder busbars supported by said panels on either side thereof, the bus-bars on one side being of one polarity and those on the other side of opposite polarity, switches at the front of said face-wall or board, each connected with the feeder bus-bars on both sides of a panel, auxiliary bus-bars arrangedy between the panels alternately of opposite polarity and connected with the switches, and fuses interposed in said feeder bus-barsand supported by the panels.

5. An electrical switchboard, comprising a face-wall or continuous upright board,'a plurality of vertical panels perpendicular to said face-wall or board and spaced some distance apart, a plurality of feeder buse. bars supported by: said panels on either side" thereof, the bus-bars on one side being ot! one polarity and those on the other side ot'` opposite polarity,s\vitchcs at thc front of said face-wall or board, each connected with the feeder bus-bars on both sides of a panel, auxiliary bus-bars arranged between the panels alternately of opposite polarity, feeders connected with the feeder bus-bars,

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and fuses supported by the panels and interposed in the bus-bars al' a lpoint distant from the point of connection ot' the feeders with the feeder bus-bars.

6. ln an electrical switchboard, having a face-wall or continuons upright board, a plurality ol panels perpendicular thereto, a plurality of feeder bus-bars arranged on both sides of the. panels, each bus-bar having one of its ends' terminating at the front 0f the upright board on the same side of the panel on. which it is located, and fuses supported by said panels on either 'side thereof and interposed in the feeder bus-bars.

7. In a switch-board, thewmubimition of a series of spaced insulating panels, switches having t'grminals at opposite faces of cach of said panels, means for electrically connectingtogcther respectively one terminal of all of the switches, in the alternate s'paces f between said panels, and 4conducting means connected to the other terminal of each of said switches,

8. In a switcli-boaicl, the combination of a series of spaced insulating panels, switches ,l having 'terminals at opposite faces of each of said panels, means for electrically connecting together respectively one terminal l of all of the switches, in the alternate spaces between said panels, and conducting means l connected to the other terminal of each o43 l said switches, said conductingl means being l of only that polarit7 as the terminals loetween the respective pair of partitions. l 9. In a switch-board, the combination oft ,l a series of spaced insulating panels,sWitches i having terminals at opposite faces of each i of said panels, means for electrically cony nccting together respectively one terminal of all of the switches, in the alternate spaces between said panels, conducting means conl said i nectcd in the other terminal o'each ot' f the opposite sides ot' as my invention,

presence of two siilas'erilnng witnesses.

switches, and means for simultaneously operating the switches each oi said panels.

l0. ,ln a switch-board, a series of spaced insulating panels, switches having terminalsl near opposite faces of each of said panels, a pair of bus-bars, conductors connecting one terminal of both switches in the alternate spaces betweensaid panels with said 1ous-laars respectively, feeders connected With the other terminal of each ot' said switches, and means for simultaneously operating the switches having terminals near the opposite faces of each of said panels. f

ln testimonythatl claim the foregoing have signed .my name in llffilllnsthl M. ll YBIAN. lllitncsses 5 l). Goeman, C. BAnNm'r.

having terminals nearY 

